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FMS3818
Triple Video D/A Converter
3 x 8 bit, 180 Ms/s Features
• • • • • ±2.5% gain matching ±0.5 LSB linearity error Internal bandgap voltage reference Low glitch energy Single 3.3 Volt power supply
Description
The FMS3818 is a low-cost triple D/A converter, tailored to fit graphics and video applications where speed is critical. CMOS-level inputs are converted to analog current outputs that can drive 25–37.5Ω loads corresponding to doublyterminated 50–75Ω loads. A sync current following SYNC input timing is added to the IOG output. BLANK will override RGB inputs, setting IOG, IOB and IOR currents to zero when BLANK = L. Although appropriate for many applications the internal 1.25V reference voltage can be overridden by the VREF input.